Refractive shift in the position of the pulsar PSR B0329+54, measured at 111, 610, and 2300 MHz
- Autores: Rodin A.E.1, Starovoit E.D.1,2
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Afiliações:
- Pushchino Radio Astronomy Observatory, Astro Space Center, Lebedev Physical Institute
- Pushchino State Natural Sciences Institute
- Edição: Volume 61, Nº 11 (2017)
- Páginas: 942-947
- Seção: Article
- URL: https://journals.rcsi.science/1063-7729/article/view/191188
- DOI: https://doi.org/10.1134/S106377291711004X
- ID: 191188
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Resumo
The results of an analysis of timing data for the pulsar PSR B0329+54 obtained in 1968–2012 on the Large Scanning Antenna of the Pushchino Radio Astronomy Observatory at 111 MHz, the 64 m DSS-14 telescope of the Jet Propulsion Laboratory at 2.3 GHz, and the 64 m telescope of the Kalyazin Radio Astronomy Observatory at 610 MHz are presented. The astrometric and spin parameters of the pulsar are derived at a new epoch. The coordinates of the pulsar and its proper motion measured at the three frequencies differ. These differences have a systematic character, and are interpreted as a secular, refractive shift in the apparent position of the pulsar that arises because it is observed through large-scale inhomogeneities of the interstellar medium, leading to variations in the angle of refraction.
Sobre autores
A. Rodin
Pushchino Radio Astronomy Observatory, Astro Space Center, Lebedev Physical Institute
Email: starovoyt.prao@gmail.com
Rússia, Pushchino, Moscow oblast
E. Starovoit
Pushchino Radio Astronomy Observatory, Astro Space Center, Lebedev Physical Institute; Pushchino State Natural Sciences Institute
Autor responsável pela correspondência
Email: starovoyt.prao@gmail.com
Rússia, Pushchino, Moscow oblast; Pushchino, Moscow oblast
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